'May' and 'must' are modal verbs that are confused by learners because they talk about possibilities and probabilities. Click here to learn their differences.
'Have to' and 'must' have the same meaning and are used to express obligations. However, they are used in different situations and are not interchangeable.
'Have to' and 'must' have the same meaning and are used to express obligations. However, they are used in different situations and are not interchangeable.
'Have to' and 'must' have the same meaning and are used to express obligations. However, they are used in different situations and are not interchangeable.